Paz let us know about those glass straws and what the ID is if you do get them. I bet you will still need some silicon to connect them. It is an interesting idea. Simmy, I was just wondering if it would ruin the poly on first thought if you boil it and the pieces with it. I believe it we can boil it then we have a chance of getting it cleaner. I don't know if the black part and the white part will make it through the process. I am not even sure about the poly itself. If it makes it through you experiment then when someone is ready to toss a dirty one they can try to clean it by boiling before having to tossing it. I am not sure what the NO2 tubes are made out of but the vapor isn't so hot that even if it is plastic it will matter at least to me. It is sold with a vaporizer but as we know that doesn't mean much. Simmy, yes water will cool but I use the long tube when out if I don't use my other set up with the tip and the smooth flow. I also use the tube with water so I don't have to hold anything.